Effect of electric current pulse on preparation of nano Y₂O₃

ABSTRACT

The effect of electric current pulse (ECP) on preparing nano Y₂O₃ powder was initially investigated in this paper. From the determination of thermogravimetric analysis, differential scanning calorimetry and X-ray diffraction, it was revealed that the composition of non-calcined precursor had changed due to the application of ECP. In addition, the scanning electron microscope results indicated that Y₂O₃ powders fabricated by ECP treatment had less aggregate and were in nano size. Therefore, the ECP treatment is a promising way to prepare nano Y₂O₃ powder.

This paper is part of a themed issue on Materials in External Fields.

KEYWORDS:

• Electric current pulse
• yttria
• precursor

Acknowledgements

The authors thank Professor J.D. Guo of Institute of Metal Research, Chinese Academy of Sciences, for many helpful discussions.

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Z. Y. Liu http://orcid.org/0000-0002-1830-8957

Additional information

Funding

This work was supported by the National Natural Science Foundation of China(grant numbers 51304039, 51471047 and 51674013) and the Fundamental Research Funds for the Central Universities(grant numbers N130418001 and N130402021).